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Why is titanium used in pulp and paper bleaching equipment?

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titanium processing High-purity (99.999 percent) titanium metal.

Titanium is used in pulp and paper bleaching equipment primarily due to its exceptional corrosion resistance, particularly in environments containing chlorides and oxidizing agents.1

The metal's ability to withstand these harsh conditions stems from the formation of a stable, passive oxide film on its surface, which remains inert in most natural and industrial process streams. When titanium was introduced as a replacement for stainless-steel components in the pulp and paper industry, its superior performance led to the development of advanced displacement bleaching systems.231

Today, titanium is utilized for a variety of critical components in these systems, including:
* Central shafts and diffusers1
* Scrapers and packing boxes1
* Filtrate pumps and valves1
* Heat exchangers1

By utilizing titanium, manufacturers can effectively eliminate corrosion issues that would otherwise compromise equipment longevity and operational efficiency in the aggressive chemical environments required for paper bleaching.1